The document summarizes the history of the town of Avilés in northern Spain. It describes how King Alfonso VII granted Avilés a municipal charter in the 12th century, allowing it to develop as the first coastal village in northern Spain. Over time, two population centers grew around the port: Sabugo, where fishermen lived, and Avilés itself, separated by the Tuluergo River. The document then provides details about Avilés' defensive wall, churches including Los Padres and the Franciscan Church, and the neighborhood of Sabugo.